Correlation coefficient between thyroid, pituitary, adrenal gland weights and some carcass quality as affected by experimental hypo-and hyper thyroidism in Fayoumi and Dandarawi chicks.
Abstract: A total of 36 chick 20 weeks of age were taken by randomfrom a basic
population of 300 chicks of two native breeds , the fayoumi (FF) and the Dandarawi (DD) (150 chicks each). The chikckens were injected at hatch by Thyroxine Sodium (T4) as 1st treatment, by carbimazole (goitrogenic drug) as a 2nd treatment, and by distilled water as a control ,to study the effect of Hypo –and Hyper thyroidism on weight of some Endocrine Glands (Thyroid, Pituitary, Adrenal) and some carcass quality.
Correlation coefficient values were estimated between Thyroid and each of Pituitary and Adrenal. Correlation coefficient values between edible meat of carcasses and each of Thyroid gland weight, Adrenal gland weight and Pituitary gland weight values were also estimated.
Results obtained indicated that, correlation coefficient value between thyroid and pituitary gland weights was high in Fayoumi male then females. The vice versa was noticed with Dandarawi breed.
Thyroid gland weight showed a highly positive correlation with the adrenal gland weight in both male and female chicks of two breeds under study.
Positive correlation coefficient value was found between thyroid gland weight and edible meat weight of the carcass of either male and female chicks of the two breeds as a result of applying experimental hypo and hyperthyroidism with different rates depending on breed and sex of the chicks. However, these correlation coefficient values were in significant magnitude.
Correlation coefficient value between adrenal gland weight and weight of edible meat of both Dandarawi and Fayomi males was increased as a result of experimental hypothyrodism.
Edible meat weight was found to be negatively correlated with the weight of the Pituitary gland.
The obtained results showed responses to treatment on the correlation coefficient value between edible meat weight and each of adrenal and pituitary weights.
Keywords: fayuomi, Dandarawi, glands, correlation coefficient.
Publication year 2002
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد - الدقى- الجيزة
Availability number
Organization Name
Country Egypt
City القاهرة
serial title Egyptian Journal Agricultural Research
Volume 80 . 2
Department Poultry Breeding Research Department
Author(s) from ARC
External authors (outside ARC)
    صفوت محمد جادو جامعد الزقازيق
Agris Categories Animal husbandry
AGROVOC
TERMS		 Adrenal glands. Carcass composition. Genetic correlation. Layer chickens. Pituitary gland. Thyroid gland.
Publication Type Journal
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